# Crie uma nova API Web ASP.NET Core
dotnet new web -n WeatherMcpServer
cd WeatherMcpServer

# Adicione pacotes necessários
dotnet add package ModelContextProtocol.AspNetCore --version 1.0.0
dotnet add package Azure.AI.OpenAI --version 2.0.0
dotnet add package Microsoft.Extensions.Configuration.UserSecrets

dotnet user-secrets init
dotnet user-secrets set "AzureOpenAI:Endpoint" "https://your-resource.openai.azure.com/"
dotnet user-secrets set "AzureOpenAI:ApiKey" "your-api-key"
dotnet user-secrets set "AzureOpenAI:DeploymentName" "gpt-4"

using System.Text.Json.Serialization;

namespace WeatherMcpServer.Services;

public record WeatherData
{
    [JsonPropertyName("location")]
    public string Location { get; init; } = string.Empty;

    [JsonPropertyName("temperature")]
    public double Temperature { get; init; }
}

public class WeatherService
{
    public Task<WeatherData> GetWeatherAsync(string location)
    {
        var weather = new WeatherData
        {
            Location = location,
            Temperature = 25.0
        };
        return Task.FromResult(weather);
    }
}

using ModelContextProtocol.Server;
using WeatherMcpServer.Services;

namespace WeatherMcpServer.Tools;

[McpServerToolType]
public class WeatherTools
{
    private readonly WeatherService _weatherService;

    public WeatherTools(WeatherService weatherService)
    {
        _weatherService = weatherService;
    }

    [McpServerTool(
        Title = "Obter Clima Atual",
        Description = "Obtenha as condições climáticas atuais para uma localização específica")]
    public async Task<WeatherData> GetCurrentWeather(
        [McpServerToolParameter(Description = "Nome da cidade ou localização")]
        string location)
    {
        return await _weatherService.GetWeatherAsync(location);
    }
}